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CUPID-0: the first array of enriched scintillating bolometers for 0$$\nu \beta \beta $$ decay investigations |
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| Authors: | O Azzolini M T Barrera J W Beeman F Bellini M Beretta M Biassoni C Brofferio C Bucci L Canonica S Capelli L Cardani P Carniti N Casali L Cassina M Clemenza O Cremonesi A Cruciani A D’Addabbo I Dafinei S Di Domizio F Ferroni L Gironi A Giuliani P Gorla C Gotti G Keppel M Martinez S Morganti S Nagorny M Nastasi S Nisi C Nones D Orlandi L Pagnanini M Pallavicini V Palmieri L Pattavina M Pavan G Pessina V Pettinacci S Pirro S Pozzi E Previtali A Puiu F Reindl C Rusconi K Schäffner C Tomei M Vignati A Zolotarova |
| Institution: | 1.INFN, Laboratori Nazionali di Legnaro,Legnaro,Italy;2.Materials Science Division,Lawrence Berkeley National Laboratory,Berkeley,USA;3.Dipartimento di Fisica,Sapienza Università di Roma,Rome,Italy;4.INFN, Sezione di Roma,Rome,Italy;5.Dipartimento di Fisica,Università di Milano-Bicocca,Milan,Italy;6.INFN, Sezione di Milano Bicocca,Milan,Italy;7.INFN, Laboratori Nazionali del Gran Sasso,L’Aquila,Italy;8.Massachusetts Institute of Technology,Cambridge,USA;9.Dipartimento di Fisica,Università di Genova,Genoa,Italy;10.INFN, Sezione di Genova,Genoa,Italy;11.CSNSM, Univ. Paris-Sud, CNRS/IN2P3,Université Paris-Saclay,Orsay,France;12.DiSAT,Università dell’Insubria,Como,Italy;13.Gran Sasso Science Institute,L’Aquila,Italy;14.CEA-Saclay, DSM/IRFU,Gif-sur-Yvette Cedex,France;15.Department of Physics and Astronomy,University of South Carolina,Columbia,USA;16.Max-Planck-Institut fur Physik,Munich,Germany;17.Institut fur Hochenergiephysik der AW,Wien,Austria;18.Atominstitut,Technical University Vienna,Wien,Austria |
| Abstract: | The CUPID-0 detector hosted at the Laboratori Nazionali del Gran Sasso, Italy, is the first large array of enriched scintillating cryogenic detectors for the investigation of \(^{82}\)Se neutrinoless double-beta decay (\(0\nu \beta \beta \)). CUPID-0 aims at measuring a background index in the region of interest (RoI) for \(0\nu \beta \beta \) at the level of 10\(^{-3}\) counts/(keV kg years), the lowest value ever measured using cryogenic detectors. CUPID-0 operates an array of Zn\(^{82}\)Se scintillating bolometers coupled with bolometric light detectors, with a state of the art technology for background suppression and thorough protocols and procedures for the detector preparation and construction. In this paper, the different phases of the detector design and construction will be presented, from the material selection (for the absorber production) to the new and innovative detector structure. The successful construction of the detector lead to promising preliminary detector performance which is discussed here. |
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